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Wednesday 7 February 2018 at 18:53
Quoted from boscokid:Chad, I would not buy a new MPU as I don't suspect that is your issue.
Have you tried wiggling the power supply connections while the game is on? My guess is you are losing either power or ground from a loose connection or short. Can you post your voltages from the PS test point...
Source: http://pinside.com/pinball/forum/topic/grand-lizard-game-just-dies#post-4217339